The term "most corybantic" refers to someone who is wild, frenzied, or possessed. The opposite of this word would be someone who is composed, calm, or reasonable. There are several antonyms for "most corybantic" that can be used depending on the context. For example, serene, placid, peaceful, tranquil, and even unexcited are all antonyms of this phrase. They convey a sense of calmness and stability that is the opposite of someone who is most corybantic. These words can be used to describe situations where there is no chaos or frenzy, and people are peaceful and relaxed.